Mac users can now update to OS X 10.8.4. The software update includes a new version of Safari versioned as 6.0.5, but otherwise focuses primarily on bug fixes.

The most notable bug resolution resolves the problem for when iMessages displayed some messages out of order of when they were sent and received, which has been a substantial complaint for many Mac users who use the messaging service to communicate. Other significant improvements pertain to Wi-Fi networking, an improvement for Microsoft Exchange interacting with Calendar app, a fix to allow FaceTime calls to certain foreign phone numbers, a resolution to a scheduled sleep issue for Boot Camp users, and improved VoiceOver support with PDF files. There are many other networking improvements and bug resolutions included in the 10.8.4 update, and a complete list of those changes can be found in the full release notes printed below.

Update to OS X 10.8.4

The simplest way to update to OS X 10.8.4 is by going to the  Apple menu then visiting Software Update. The update is available in the Mac App Store under the “Updates” tab.

Though it’s rare that something may happen during the update, it’s always a good idea to initiate a backup with Time Machine before beginning any OS update.

Combo updates are also available from Apple as separate downloads for users who would rather update their OS X installations manually, or who need to perform a group of upgrades on multiple Macs. The primary OS X 10.8.4 Combo Update is 343MB and can be downloaded from here.

OS X 10.8.4 Release Notes

These are the full release notes for the 10.8.4 update to Mountain Lion:

The OS X Mountain Lion v10.8.4 Update is recommended for all OS X Mountain Lion users and includes features and fixes that improve the stability, compatibility, and security of your Mac, including the following: